Table 1. Participant characteristics. Data are presented as mean ± SD.
  U12 (n = 18) U15 (n = 27) U18 (n = 14)
Age (year) 10.11 ± 0.74 12.84 ± 1.09 15.93 ± 0.80
Height (cm) 143.64 ± 10.02 169.04 ± 10.13 178.04 ± 6.43
Weight (kg) 36.84 ± 6.96 58.69 ± 10.16 75.44 ± 7.46
Training Experience (years) 0.98 ± 0.65 1.67 ± 1.23 3.26 ± 1.90
U12 = under 12 years of age; U15 = under 15 years of age; U18 = under 18 years of age; SD = standard deviation.